MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and ML classifiers indicate a high probability of maliciousness. It contains numerous embedded URLs pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of external URIs and link farm heuristics strongly indicates a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://irlanc.ru/uplcv?utm_term=how+to+send+in+bluetooth PDF link annotation
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/8b55004aa14fc278e3d95cb7cce34124/tawizenavibewovotomodop.pdfIn PDF document text
- http://sarkar.ie/userfiles/file/vefuv.pdfIn PDF document text
- http://www.rafaellucenaehijos.com/ckfinder/userfiles/files/fipazizigowejojonibezudas.pdfIn PDF document text
- https://heyratacademy.ir/file/kumos.pdfIn PDF document text
- http://thebookmarkcafe.com/uploads/files/17116183753.pdfIn PDF document text
- http://eva.am/files/eb093c8660ac035e.pdfIn PDF document text
- https://kujainspectors.com/candyticket/uploads/page_images/files/goximos.pdfIn PDF document text
- http://asbu.net/uploads/FCK_files/file/jogujige.pdfIn PDF document text
- http://urotunisia.com/uploads/FCK_files/file/gikobev.pdfIn PDF document text
- https://ncvpte.in/userfiles/file/wituvokupusozuzedop.pdfIn PDF document text
- https://stockbauer.hu/uploads/file/2992529579.pdfIn PDF document text
- https://koltoztetes-szallitas-lomtalanitas.com/ckfinder/userfiles/files/30388329869.pdfIn PDF document text
- https://airbays.com/userfiles/file/20010988260.pdfIn PDF document text
- https://www.ruchya.com.tw/upload/files/ludixevexitokifefe.pdfIn PDF document text
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/16142f3ea8a1b6---79528837931.pdfIn PDF document text
- http://anshan56.cn/userfiles/file/16324543311088933734.pdfIn PDF document text
- http://erainbowrealty.com/userfiles/file/doniji.pdfIn PDF document text
- http://e-junghan.com/userData/board/file/kafopifi.pdfIn PDF document text
- http://syuncyoku.jp/upload/file/85098120544.pdfIn PDF document text
- http://advocaatindex.nl/images/uploads/povovanuguxu.pdfIn PDF document text
- https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/ltikgrv47qlh192kt68176i4r7/21143778272.pdfIn PDF document text
- https://cissud.it/uploads/ck_editor/files/69850492455.pdfIn PDF document text
- http://www.rosabrockenhaus.ch/ckfinder/userfiles/files/karuminokepalu.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b1b4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1B4 | 10400 bytes |
SHA-256: 43c6d5ebaeb34b72fc9fe4d5cda6f0165eebac9ad21d9382f9d59f071f0e391d |
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font_01_sfnt_off0000c924.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC924 | 17352 bytes |
SHA-256: e65a2a2f628c7f7a6004988d652cfa4572ca224f893bea94b5bc34739031f3bb |
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font_02_sfnt_off0000f50c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF50C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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